Effects of Ageing on Amylase Activity and Scutellar Cell Structure during Imbibition in Wheat Seed
In wheat seed the scutellum plays an important role in the hydrolysis of stored substrate during germination. This layer is activated first, whilst the aleurone becomes activated later. A good correlation exists between the initiation of visible germination and the appearance of enzyme activity in t...
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| Veröffentlicht in: | Annals of botany 1993-05, Vol.71 (5), p.411-416 |
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| container_title | Annals of botany |
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| creator | Ganguli, Smritimala Sen-Mandi, Swati |
| description | In wheat seed the scutellum plays an important role in the hydrolysis of stored substrate during germination. This layer is activated first, whilst the aleurone becomes activated later. A good correlation exists between the initiation of visible germination and the appearance of enzyme activity in the scutellum. Enzyme activity in the aleurone becomes apparent only when the germinating seedling reaches the rapid growth phase. Electron microscopic observations show that during the later stages of germination the scutellar cells develop finger like projections. These may serve to absorb endospermic reserves hydrolysed by aleurone amylase. The scutellum of aged non-germinating seeds showed no amylase activity and no finger like projections were produced even after prolonged imbibition. |
| doi_str_mv | 10.1006/anbo.1993.1052 |
| format | Article |
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This layer is activated first, whilst the aleurone becomes activated later. A good correlation exists between the initiation of visible germination and the appearance of enzyme activity in the scutellum. Enzyme activity in the aleurone becomes apparent only when the germinating seedling reaches the rapid growth phase. Electron microscopic observations show that during the later stages of germination the scutellar cells develop finger like projections. These may serve to absorb endospermic reserves hydrolysed by aleurone amylase. The scutellum of aged non-germinating seeds showed no amylase activity and no finger like projections were produced even after prolonged imbibition.</description><identifier>ISSN: 0305-7364</identifier><identifier>EISSN: 1095-8290</identifier><identifier>DOI: 10.1006/anbo.1993.1052</identifier><identifier>CODEN: ANBOA4</identifier><language>eng</language><publisher>London: Elsevier Science Ltd</publisher><subject>Agronomy. Soil science and plant productions ; aleurone ; Biological and medical sciences ; deteriorated ; Embryos ; Endosperm ; Enzyme activity ; Fundamental and applied biological sciences. Psychology ; Germination ; Germination and dormancy ; Imbibition ; Plant physiology and development ; scanning electron microscopy ; scutellum ; Secretion ; Seedlings ; Seeds ; Starches ; Viability ; Wheat (Triticum aestivum L.) ; Wheat (Triticum aestivum L.), deteriorated, germination, scutellum, scanning electron microscopy, aleurone</subject><ispartof>Annals of botany, 1993-05, Vol.71 (5), p.411-416</ispartof><rights>1993</rights><rights>1993 Annals of Botany Company</rights><rights>1993 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c377t-4627c24985146a666a7d5ed1c9d16ab297471dfab14f0117278d18d65199b4423</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/42758845$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/42758845$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=4857178$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ganguli, Smritimala</creatorcontrib><creatorcontrib>Sen-Mandi, Swati</creatorcontrib><title>Effects of Ageing on Amylase Activity and Scutellar Cell Structure during Imbibition in Wheat Seed</title><title>Annals of botany</title><addtitle>Ann Bot</addtitle><description>In wheat seed the scutellum plays an important role in the hydrolysis of stored substrate during germination. This layer is activated first, whilst the aleurone becomes activated later. A good correlation exists between the initiation of visible germination and the appearance of enzyme activity in the scutellum. Enzyme activity in the aleurone becomes apparent only when the germinating seedling reaches the rapid growth phase. Electron microscopic observations show that during the later stages of germination the scutellar cells develop finger like projections. These may serve to absorb endospermic reserves hydrolysed by aleurone amylase. The scutellum of aged non-germinating seeds showed no amylase activity and no finger like projections were produced even after prolonged imbibition.</description><subject>Agronomy. Soil science and plant productions</subject><subject>aleurone</subject><subject>Biological and medical sciences</subject><subject>deteriorated</subject><subject>Embryos</subject><subject>Endosperm</subject><subject>Enzyme activity</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Germination</subject><subject>Germination and dormancy</subject><subject>Imbibition</subject><subject>Plant physiology and development</subject><subject>scanning electron microscopy</subject><subject>scutellum</subject><subject>Secretion</subject><subject>Seedlings</subject><subject>Seeds</subject><subject>Starches</subject><subject>Viability</subject><subject>Wheat (Triticum aestivum L.)</subject><subject>Wheat (Triticum aestivum L.), deteriorated, germination, scutellum, scanning electron microscopy, aleurone</subject><issn>0305-7364</issn><issn>1095-8290</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNp1kc1LwzAYh4MoOD-u3oQcvHYmab56nEOdOPAwRfES0iTVaNdKkon7702p6MnTS_j9npD3CQAnGE0xQvxcd3U_xVVV5iMjO2CCUcUKSSq0CyaoRKwQJaf74CDGN4QQ4RWegPqyaZxJEfYNnL04373AvoOz9bbV0cGZSf7Tpy3UnYUrs0mubXWA8zzgKoWNSZvgoN2EgbtZ1772yWfed_Dx1ekEV87ZI7DX6Da64595CB6uLu_ni2J5d30zny0LUwqRCsqJMIRWkmHKNedcC8ucxaaymOuaVIIKbBtdY9ogjAUR0mJpOcsr15SS8hBMx3tN6GMMrlEfwa912CqM1GBIDYbUYEgNhjJwNgIfOhrdNkF3xsdfikomsJC5djrW3mLqw19MBJOSspwXY-5jcl-_uQ7viotSMLV4elYXhD5f3d4itcp9OfZdlvHpXVDReNcZZ33IX6Fs7_978TdkZpGY</recordid><startdate>19930501</startdate><enddate>19930501</enddate><creator>Ganguli, Smritimala</creator><creator>Sen-Mandi, Swati</creator><general>Elsevier Science Ltd</general><general>Oxford University Press</general><general>Academic Press</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19930501</creationdate><title>Effects of Ageing on Amylase Activity and Scutellar Cell Structure during Imbibition in Wheat Seed</title><author>Ganguli, Smritimala ; Sen-Mandi, Swati</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c377t-4627c24985146a666a7d5ed1c9d16ab297471dfab14f0117278d18d65199b4423</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>aleurone</topic><topic>Biological and medical sciences</topic><topic>deteriorated</topic><topic>Embryos</topic><topic>Endosperm</topic><topic>Enzyme activity</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Germination</topic><topic>Germination and dormancy</topic><topic>Imbibition</topic><topic>Plant physiology and development</topic><topic>scanning electron microscopy</topic><topic>scutellum</topic><topic>Secretion</topic><topic>Seedlings</topic><topic>Seeds</topic><topic>Starches</topic><topic>Viability</topic><topic>Wheat (Triticum aestivum L.)</topic><topic>Wheat (Triticum aestivum L.), deteriorated, germination, scutellum, scanning electron microscopy, aleurone</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ganguli, Smritimala</creatorcontrib><creatorcontrib>Sen-Mandi, Swati</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Annals of botany</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ganguli, Smritimala</au><au>Sen-Mandi, Swati</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of Ageing on Amylase Activity and Scutellar Cell Structure during Imbibition in Wheat Seed</atitle><jtitle>Annals of botany</jtitle><addtitle>Ann Bot</addtitle><date>1993-05-01</date><risdate>1993</risdate><volume>71</volume><issue>5</issue><spage>411</spage><epage>416</epage><pages>411-416</pages><issn>0305-7364</issn><eissn>1095-8290</eissn><coden>ANBOA4</coden><abstract>In wheat seed the scutellum plays an important role in the hydrolysis of stored substrate during germination. This layer is activated first, whilst the aleurone becomes activated later. A good correlation exists between the initiation of visible germination and the appearance of enzyme activity in the scutellum. Enzyme activity in the aleurone becomes apparent only when the germinating seedling reaches the rapid growth phase. Electron microscopic observations show that during the later stages of germination the scutellar cells develop finger like projections. These may serve to absorb endospermic reserves hydrolysed by aleurone amylase. The scutellum of aged non-germinating seeds showed no amylase activity and no finger like projections were produced even after prolonged imbibition.</abstract><cop>London</cop><pub>Elsevier Science Ltd</pub><doi>10.1006/anbo.1993.1052</doi><tpages>6</tpages></addata></record> |
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| ispartof | Annals of botany, 1993-05, Vol.71 (5), p.411-416 |
| issn | 0305-7364 1095-8290 |
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| source | Jstor Complete Legacy; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection; Oxford University Press Journals Digital Archive Legacy |
| subjects | Agronomy. Soil science and plant productions aleurone Biological and medical sciences deteriorated Embryos Endosperm Enzyme activity Fundamental and applied biological sciences. Psychology Germination Germination and dormancy Imbibition Plant physiology and development scanning electron microscopy scutellum Secretion Seedlings Seeds Starches Viability Wheat (Triticum aestivum L.) Wheat (Triticum aestivum L.), deteriorated, germination, scutellum, scanning electron microscopy, aleurone |
| title | Effects of Ageing on Amylase Activity and Scutellar Cell Structure during Imbibition in Wheat Seed |
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